Christmas tree



FIG. 1 is a front perspective view of an ornamental Christmas tree,showing my new design;

FIG. 2 is a front elevation view thereof; the rear elevation view beinga mirror image thereof;

FIG. 3 is a right elevation view thereof, the left elevation view beinga mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines shown in the drawings depict portions of the ornamentalChristmas tree that form no part of the claimed design.

CLAIM The ornamental design for an ornamental Christmas tree, as shownand described.